Originally Posted by paulb787
LAST question and thank you soo much for the help! so if i bought a slim that isnt PS3 CECH-250_A or B i can downgrade regardless if the previous owner has upgraded to the latest firmware?
thank you again!
It would have taken me hours to find all of this!
No problem, and yes, to a point. Slim 3k models cannot be downgraded either, which are the most common ones nowadays, and are considered unhackable as of now. In addition, the slim 250_A/B's that are 120GB/250GB are fine, but the 160GB/320GB are not.
Also, to downgrade you need a hardware flasher and a service mode jig. The flasher can be many different things, but the most recommended ones are Progskeet, or Teensy++ 2.0. As for a service mode jig, I have a couple PSP's, so I just use those, but there's a large variety of things you can use for this, just have a quick google to find out your options if need be.